e　has　this　deep　instinct　e　which　escapes　from　the　mouth　of　all　living　creatures　in　moments　of　peril？ Move　your　hand　in　haste　before　another's　eyes　and　his　eyelids　will　blink。　Tap　another　on　his　knee　and　his　leg　will　jump。　Confront　another　with　dark　horror　and　his　mouth　will　say；　〃My　God〃　from　the　same　deep　impulse。 My　life　need　not　be...